JPS6123002A - Manufacturing system of printed board unit - Google Patents

Abstract

PURPOSE:To contain a system in a minimum space and save a work awaiting time so as to economically operate the system, by juxtaposing around a rotary stocker a controlled device of various kinds and automatically performing supply and discharge of a magazine, parts and function test and an integrated test or the like. CONSTITUTION:A manufacturing system freely conveys by the instruction of a control device 15 magazines 13, 18 to be supplied to testers 9-12 of each kind coupled to a rotary stocker 1. A jig product or the like is supplied from the stocker 1 to and discharged from the tester 9 by a supply-discharge device 4 and 2, 3 respectively supplying and discharging the jig magazine 18 and the printing magazine 13, while a condemned article, being returned from the device 2 and output from an NG discharging part 21, is fed by a roller conveyer 26 to a repair area 27 and repaired. A control part of the tester 9 and the functional testers 10-12, robot 5, device 4 and 2, 3, stocker 1, etc. receives a control instruction of the device 15.

Description

[Detailed Description of the Invention] [Industrial Field of Application] The present invention relates to a manufacturing system for printed board units, which uses a rotary stocker to enable automatic supply/discharge of unit products, and also includes a testing jig. The present invention also relates to a printed board unit manufacturing system that enables automatic supply and discharge, improves logistics efficiency, and enables comprehensive unmanned operation of the testing process.

With the development of semiconductors, communication equipment and equipment have become increasingly integrated into integrated circuits, changing from mechanical configurations to mainly electronic circuits.
Equipment is progressing toward more advanced functions.

On the other hand, this kind of complex and highly functional communication equipment is becoming increasingly diverse, and the main component of the equipment is the printed circuit board unit (
Printed boards (hereinafter simply referred to as printed boards) are also changing from single-item mass production to high-mix, low-volume production.

[Conventional technology]

As testing equipment for such printed boards, a single device such as an insakit board tester, which tests circuit components mounted on a printed board, has been developed.

In general, in-circuit board testers, etc., are widely used as single devices because they facilitate fault analysis and can be applied regardless of the function of the printed board, and are used as testing devices using self-propelled vehicles etc. equipped with printed boards. A communication system has also been developed.

Each piece of equipment is installed independently, and individual buffers are set up for each piece of equipment to stock and supply target products (printed board units), test jigs, etc., and products are transported between each piece of equipment using self-propelled vehicles, etc. So-called batch processing is also performed.

[Problem that the invention seeks to solve]

However, since each piece of equipment is an independent production system,
Equipment costs are high, logistics between each facility requires communication means such as humans or self-propelled vehicles, and indirect cropping is involved, making it difficult to improve logistics.Furthermore, it is difficult to improve logistics by testing a single product in small quantities of a wide variety of products. compared to the operating time of the equipment,
There was a problem in that it involved work such as supplying/discharging (replacing) jigs and reading test data for each of the nine test items, resulting in lost time such as waiting time for work.

[Means for solving problems]

The present invention solves all of the above-mentioned problems, and its configuration includes: It is shown in Figure i-1 Customer 1. FIG. 1 is a diagram of the manufacturing system for printed circuit board units and the total testing system. Each, f11 test offshore equipment (9°10.11
．． 12) are connected by a rotary stocker 1, and this rotary stocker has a stocking section 19. for manufacturing wheels (printed board units) and jigs. Delivery section 20, products to each testing device,
Equipped with a device (2, 3, 4, etc.) that automatically supplies/discharges jigs, each product and jig is stored in a magazine (13, 1, etc.) that stores a predetermined amount.
8) Stocked in units in a rotary stocker. Then, the main control wave (115) is transmitted to the rotary stocker control device 14, the test device control unit (23, 24, etc.)
is controlled, the entire stocker rotates, magazines are fed and ejected at predetermined locations, and sequential component tests, 2 function tests, comprehensive tests, etc. are conducted.

The rotary stocker is also equipped with two defective product discharge sections for discharging products that have failed the test.

[Effect]

According to the present invention, the magazine input from the storage section to the rotary stocker is transferred to the IC by the rotation of the rotary stocker.
Since circuits are sequentially sent to in-circuit tester equipment and functional test equipment for testing automatically, the necessary manufacturing equipment and testing equipment can be placed around the rotary stocker, allowing for comprehensive testing with one stocker. Can build systems.

〔Example〕

The present invention will be explained in detail below using examples.

FIG. 1B is a plan view illustrating the operation mode of the system, centering on the rotary stocker in the overall system configuration diagram shown in FIG. 1A. The configuration example of this system uses a two-stage rotary stocker developed for multi-purpose use such as stocking, transporting, and supplying printed circuit boards and test jigs, and the position and number of entrances and exits can be changed freely. This makes it easier to add or reduce equipment such as testing equipment due to the size of the installation location. Magazines 13.18 containing printed boards and jigs are connected to various test devices 9.10, 1 connected to the rotary stocker 1 according to instructions from the system control device 15.
1.12 will be freely transported and supplied. For example, magazines 13 and 18 manually fed from the storage section 19 by a roller conveyor.
are stored in trays in the rotary stocker 1, and each tray is connected to convey the magazine. The test device 9 is, for example, an in-circuit tester, and a supply/discharge device 4. supplies and discharges a magazine 18 for the jig to and from the tester.
Magazine for printed boards 13. is supplied or discharged from the rotary stocker 1 to the supply/discharge device 2°3. Each unit from the magazine is transferred to a tester 9 by the robot 5, and the zero circuit components on the printed board are tested by the tester 9. For example, the feeding and discharging devices 2 and 3 for magazines for printed circuit boards receive the thing to be tested from the feeding and discharging device 3,
Defective products are returned to another supply/discharge device 2. Other equipment includes, for example, trunk packages used in telephone exchanges, circuit function test equipment 10 that performs operation tests for subscriber circuit packages, power supply function test equipment 11 that tests the operation of power supply packages, and other additional equipment. device 1
2nd place is placed. After the test, the good magazines are outputted from the unloading section 20, and the defective ones are outputted from the NG discharging section 21. Further test equipment and the like can be installed in the empty space 25 of the roller contour stocker 1. In addition, 6 is the hand of robot 5, and 16.17 is shown as a person in Figure 1.
2 represents a transfer section for sending out printed boards and jigs in units of units, and 22 represents a stand on which printed boards are placed after testing (omitted in FIG. 1B). Figure 1B
The control commands ■, ■, ■ from the control section 15 are sent to the shipping section 20. This shows that the output is being output to the NG discharge section 2i and the control section of other functional testing devices.

FIG. 1C is a diagram illustrating the control system of the system of the present invention. Control unit 23゜100.110 of each test device, for example Insakind tester 92 functional test device 10, 11.12
and the control unit 500 of the robot 5. Jig magazine supply/discharge device 40 control unit 400. Printed board magazine supply/discharge device 2
, 3 control unit 2001 Rotary stocker control unit 11
The first class receives control commands from the upper control device 15. This control device has all scheduling functions for the operation of this system.

Fig. 2 explains the configuration of the rotary stocker.
1 is attached to a connecting chain. Horn 1
The @ shown in 11JA is a two-stage rotary stocker, and each stage can be rotated independently, and the number of stages is not limited to two stages, whether it is one stage or a 3R configuration. I don't mind.

fa3 diagrams A, B, and C are for explaining the detailed structure of the introductory rhyme. Connect to tray 33 of the rotary stocker (
, Roller conveyor 4 is the belt 4 that sends out the magazine.
An interface part 40 with 0.l is provided and has a cylinder 42 inside it.

Magazine 13゜1 is installed at m5iz and i at the end of cylinder cylinder 42.
Bottom of 8′! It is provided with a protrusion 422 that protrudes into the IiE notched hole. This protrusion 422 is always pushed upward by a spring 423, pushes the bottom plate of the magazine with one side of its triangular shape, and transfers the magazine 13.18 to the tray 33. When the cylinder is controlled to retract to the initial position after loading, the protrusion 422 is disengaged from the bottom plate of the magazine due to the action of the rectangular slope and the spring 423, in preparation for pushing out the next magazine 13.18. Note that 411 indicates a roller of a roller conveyor.

FIGS. 4A, B, C, and D are diagrams illustrating the detailed configuration of the delivery section. The magazines 13 (18) on the tray 33 in the rotary stocker are discharged through the interface section 50 to the roller conveyor 5J, which is an array of rollers 511.A conveyor 501 for transferring the magazines is attached to this interface section 50. It is being The structure is basically the same as that of the storage section (Fig. 3), but the tip end 521 of the cylinder 52 of the interface section has a cutting edge of the bottom plate of the magazine 13, 18 when withdrawing it, contrary to the case of storage. A protrusion 522 that protrudes into the hole and is hooked is attached.

When this protrusion 522 is inserted into the rotary stocker, it is pushed down against the bottom plate of the magazine by the slope of the protrusion 522 and the spring 523.

FIGS. 5A, 5B, and 5C are diagrams illustrating the detailed configuration of the supply/discharge device for jigs, printed boards, etc. This supply/discharge device 2.3.4 receives the target magazine from the rotary stocker l, supplies the printed board unit (or jig unit) one by one to a testing device, etc., and discharges it after testing. In the case of a tiered structure, it also has the function of moving from the upper tier of the gazine to the lower tier, or from the lower tier to the upper tier.

In FIG. 5, the cylinder 70 is installed in the magazine mounting plate 80 of the supply/discharge device 2 (3, 4)
0 hooks the bottom plate notch of the magazine with the tip 71 of the magazine and pulls out the magazine. Then, the unit is connected by a chain 83 (Fig. 5B) driven by a motor in the supply/discharge device 2 (3, 4).
The cylinder rod 61 protrudes by the operation of the cylinder 60 in the rotary stocker 1 and pushes out the corresponding unit to the transfer section 16 (17) as it rises (or descends) one step at a time. Front part (a) and rear part (b) of this transfer section 16 (17)
The standby part (a) and the act part (bl) can be used to place the units before and after the test, but it is also possible to place the standby parts 22 and 2 as separate standby parts.
.

FIG. 5B explains the elevating mechanism of the magazine stand. The magazine stand 80 can be moved up and down by a guide rod 84, and is driven up and down by the movement of a chain 83. Movement of each unit within the magazine is controlled by, for example, detecting the l-unit feed positioning rod 81 with a sensor 82.

Figure 5C shows an example of the arrangement including the in-situ tester and robot, and is nothing more than an enlarged part of the overall diagram in Figure 1. The same reference numerals as those used in Figure 1 indicate the same objects, and the hand 6 of the robot 5 installs the jig G1 supplied from the jig supply/discharge device 4 into the testing device 9 (2). Printed board p tested by tool G
t is supplied from the supply/discharge device 3 and placed on the jig by the robot 5. Printed boards that were determined to be good in the test results were returned to the same storage position in the magazine and were found to be defective. The material is transferred to the NG supply/discharge device 2 side.

FIG. 6A is a diagram for explaining the structure of the tray, FIG. 6B is a diagram for explaining the relationship between the tray and the magazine, and FIG. 6C is a diagram for explaining the magazine. The relationship between the rotary stocker and the magazine that has been explained above has been explained based on the size of the magazine for jigs and the magazine for printed boards, but in reality, the sizes of the jigs and printed boards are different. Therefore, it is necessary to prepare magazines of different sizes. Therefore, in the present invention, the tray is made of S structure so that it can be used both as a magazine for jigs and a magazine for printed circuit boards.

In the case shown in FIG. 6, the tray 33 has two side plates on both sides, and a sheet made of a slippery material is attached to the magazine storage section 338 so that it can be easily moved when entering and exiting the warehouse. The front side and the plate side of each storage section 338 are provided with magazine ejection prevention stock, z6-335.33('i, rear stage stoppers 333, 334,
No. 5,336 has a chi, N11, at the front and rear to facilitate loading and unloading of the magazine. In addition, in order to provide a degree of freedom in left and right σ] when the magazine is filled with people, it is widened (33'7) toward the front.

To explain the relationship between the magazines stored in the tray in relation to Figures 6B and 6C, assuming that the width of the magazine for jigs is W7 and the width of the magazine for products (printed boards) is W1, there are two storage stages for each. are stored in each section.

The space indicated by L at the bottom is a cylinder insertion space for loading and unloading the magazine.

FIGS. 7A and 7B are explanations showing the relationship between the printed board and the jig.・For f-server nanometers, apply a test probe pin to the land or circuit pattern on the back of the printed circuit board to check whether the resistors, capacitors, etc. have the specified values, and whether the overall voltage can reach the specified value. The test is carried out by comparison with test data, etc., and a fixture (Jl.
(, is mounted in a predetermined position, and a top plate G1. that masks the probe bottle with a test pattern is placed on top of it).
ff, then put pudding (fPt) on the plate, suction it with a suction machine (not shown), and bring the printed board into close contact with it to perform the test. Therefore, each jig and the pudding plate to be the product are moved from the supply/discharge device by the robot's hand 6 as described above. In order to facilitate the stacking of the fixture, top plate, and printed circuit board, and to prevent horizontal vibration during movement by the robot, the fixture G,...
, ) The horn part 8 is attached to both sides of the horn plate G11 in such a way as to exclude the part where the holding part 61 of the robot hand touches.
01°802 is provided. That is, the inner corner portions of the horn comb portions 801 and 802 on both sides are attached to the holding portions 61 on both sides of the land to ensure secure holding.

Also, in 1982, the structure of the hand holding part was designed to be able to hold either a printed board or a fixture.
I am familiar with the ``robot hand,'' for which a patent application was filed by the same applicant on February 8, 2019.

Top play shown in Figure 7B) Board 8 of G++
05 is a board from which probe bins are selectively drawn out in a predetermined pattern, and 804 is a guide pin on which a printed board is placed. Further, 803 of the fixture GIO indicates a post pin during assembly.

Missing numbers In the present invention, when automatically supplying products to various assembly equipment and testing equipment, in order to minimize the number of setup operations such as changing jigs and reading data into the control device (data loading), A control method that performs priority control to increase the efficiency of equipment will be described below.

Normally, a buffer (storage) function for supplying products to each facility is provided for each facility, and the products are assembled and tested in the order in which they are supplied. In contrast to this conventional method, the present invention uses a batch management technology using rotary storage to enable the control unit to simulate the products placed in the storage so as to minimize the number of jig replacements. , prioritize the processing, and supply products, jigs, etc. to each facility according to this priority.

FIGS. 8A and 8B are diagrams illustrating this control method.

First, in FIG. 8A, since the control device 15 is capable of managing the entire system as explained in FIG. 1C,
Rotary storage 1 tray position (equivalent to absolute address)
It is easy to know the number (relative address). Therefore, what (products, jigs) is loaded on each tray, what type of loaded items (A, B), etc. are managed corresponding to the tray positions P1 to PIo. Some equipment 90
However, assume that the process currently being executed uses jig a for product A. For example, replacement subscriber circuit package A
For track circuit package B, each function test requires a corresponding jig because the expected functions are different. Therefore, it is mounted on each tray. The product is now P
5-A, P7-B.

If there is a relationship such as P 8-A , P 9-B , P 10-A, then from the tray position and equipment position,
Also, based on the type of jig currently being executed (al), by processing product A first, the number of jig replacements will be minimized, and by focusing on the fact that the rotary stocker can be rotated in both directions, the priority processing order is determined. ~■ is determined.

Therefore, as shown in FIG. 8B, the control device 15 uses the information Ml in the rotary storage held as management data in a memory or the like and the information M2 of the jig placed on the equipment 90 to send information to each control section every time processing is completed. Scale control is performed by issuing commands.

[Application example]

Next, in the present invention, as explained in FIG. 5C, an example is shown in which two units are installed in parallel as supply/discharge devices using printed board magazines, and one unit is used as a magazine for storing defective products. In such an example, only one test device supplies and discharges products, which may result in idle time in the test device. In order to save this time, we use the features of this rotary stocker to take out the products from the magazine, regardless of whether they are good or defective, and return them to their original storage position and store them in the NG output section (discharge section). Be selective.

FIGS. 9A and 9B are diagrams explaining this example.

In FIG. 9A, when a defective product is found in the functional testing device 10 (11, 12) and in-circuit tester 9, the control device 15 is notified of the magazine number, the housing position of the printed board, and the defective test item. Then, the defective printed board is returned to the magazine in the same manner as the good printed board, and the magazine in the rotary stocker is returned. On the other hand, the rotation of the rotary stocker causes the feed/discharge device 213 of the NG delivery section to be activated, and the control device 15 controls the control section (not shown) of the rotary stocker so that the defective printed board is output to the label pasting machine.
, supply/discharge fi213. issue a command to. The supply/discharge device 213 outputs the defective bullet board to the stand 211 of the label pasting machine 210, and the label pasting machine 210, under instructions from the control device 15,
The reason for the failure (test items, etc.) is pasted on a printed board with a label and output to the Conhair 215 via the lifting unit 214.

Then, trouble diagnosis, repair, etc. are performed on the repair stand 216. Here, supply/discharge device 213. The magazine lifting unit is basically the same as that shown in FIGS. 5A and 5B.

Since the magazine 2150 for discharging defective products is usually small in number, it is preferable to use a small magazine 2150 as shown in FIG. 9B.
If the empty magazine supply conveyor 2152 and the defective magazine discharge conveyor 2151 are used in two stages,
It becomes an efficient system.

〔Effect of the invention〕

As explained above, according to the present invention, a common rotary stocker is used for each piece of equipment, and necessary devices can be installed in parallel around this stocker, so that the entire system can be installed in the minimum required storage space. It is easy to install, economical, and can be operated automatically for long periods of time without any personnel.

[Brief explanation of drawings]

Figure 1A is an overview of the entire manufacturing system for printed board units of the present invention, Figure 1B is a plan view illustrating the operational form of the system in Figure 1, and Figure 1C is an explanation of the control system of the system. 2 is a diagram showing the configuration of the rotary stocker, FIG. 3A is a detailed configuration diagram of the warehousing section, FIG. 3B is a side view of the warehousing section shown in FIG. 3A, and FIG. C is Figure 3B
FIG. 4A is a detailed configuration diagram of the storage section, FIG. 4B is a partial plan view of FIG. 4N, and FIG. 4C is a side view of the storage section shown in FIG. 4A. 1゛4, 4ij4]) is a partial fraud of Funeral Figure 4C. 4, Figure 5A (1 jig, pre:/
Figure B is a partially detailed view of Figure 45A, and Figure 51'21 is an overall diagram explaining the relationship between C+ supply and discharge equipment 7 and iQ products. 6 Diagram A shows the tray structure Cfi
1) 11 Figure 6B is a diagram showing the relationship between the tray and Maca・2Ij, Figure 6C is a diagram showing the type 2IIj of the magazine, 7i: J A, 71st I3 is a diagram showing the relationship between the tray and the magazine. IJ71.
A diagram showing the relationship between the plate and the jig, Figure 8' + = 8
Figure 9A and B are diagrams explaining the no-kense control.
This is a diagram for cutting out an example of #6 and #5 for distributing defective products. 1: Rotary stonker 2.3.4: Supply/discharge device 9.10, 11, 12: Test device 13.18: Magazine 14.15, 23.24: Control device 19: Storage section 20: Storage section 21: Good Product Discharge Department Agent Patent Attorney Hiroshi Matsuoka VB County □Ne60
A Diagram B Outside trnc Mushroom 7 Diagram A '//l) Outside 75 B l

Claims (1)

[Claims] Consisting of a rotary stocker, various manufacturing equipment (including testing equipment) placed around the rotary stocker, and a supply/discharge device installed between the rotary stocker and the various manufacturing equipment for supplying/discharging products, etc. A printed board unit manufacturing system characterized in that the rotary stocker commonly carries out the transportation and stocking of products, etc. to the various manufacturing devices.